求上位机界面程序

[huangjuanlove]

我是用MFC作一个上位机的界面，现在要把串口接收的的下位机的信息（如下）
19 02 00 01 00 01 06 01 50 70 7D 00 00 FF 00 00 00 00 00 00 00 00 00 00 00 0A 00 00 00 00 00 00
00 00 00 01 78 CA 00 00 14 86 （接收数据）转换成十进制数字显示在名为IDC_EDIT_RECMSG 编辑框中，。本人对C++很迷茫，希望大神帮编写个程序。感激不尽。

[wushuang443]

这个很简单的，百度一下就知道怎么做了

[赵4老师]

参考下面：

#include <stdio.h>
char hexstr[]="19 02 00 01 00 01 06 01 50 70 7D 00 00 FF 00 00 00 00 00 00 00 00 00 00 00 0A 00 00 00 00 00 00 00 00 00 01 78 CA 00 00 14 86  ";
unsigned char hexval[256];
char *p;
int i,v,n,r;
unsigned short int usi;
unsigned int ui;
int main() {
    i=0;
    p=(char *)hexstr;
    while (1) {
        r=sscanf(p,"%2x%n",&v,&n);
        if (1==r) {
            hexval[i]=(unsigned char)v;
            i++;
            if (i>=256) break;
            p+=n;
        } else if (0==r) {
            p++;
        } else break;
    }
    n=i;
    for (i=0;i<n;i++) printf("%02X ",hexval[i]);
    printf("\n");

    //比如hexval[0..1]组成一个unsigned short int
    usi=*(unsigned short int *)&hexval[0];
    printf("usi=0x%04hX=%hd\n",usi,usi);

    //比如hexval[2..5]组成一个unsigned int
    ui=*(unsigned int *)&hexval[2];
    printf("ui=0x%08X=%d\n",ui,ui);

    //...

    return 0;
}
//19 02 00 01 00 01 06 01 50 70 7D 00 00 FF 00 00 00 00 00 00 00 00 00 00 00 0A 00 00 00 00 00 00 00 00 00 01 78 CA 00 00 14 86
//usi=0x0219=537
//ui=0x01000100=16777472
//

[向立天]

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[jianghandaxue]

引用 2 楼 zhao4zhong1 的回复:

参考下面：

#include <stdio.h>
char hexstr[]="19 02 00 01 00 01 06 01 50 70 7D 00 00 FF 00 00 00 00 00 00 00 00 00 00 00 0A 00 00 00 00 00 00 00 00 00 01 78 CA 00 00 14 86  ";
unsigned char hexval[256];
char *p;
int i,v,n,r;
unsigned short int usi;
unsigned int ui;
int main() {
    i=0;
    p=(char *)hexstr;
    while (1) {
        r=sscanf(p,"%2x%n",&v,&n);
        if (1==r) {
            hexval[i]=(unsigned char)v;
            i++;
            if (i>=256) break;
            p+=n;
        } else if (0==r) {
            p++;
        } else break;
    }
    n=i;
    for (i=0;i<n;i++) printf("%02X ",hexval[i]);
    printf("\n");

    //比如hexval[0..1]组成一个unsigned short int
    usi=*(unsigned short int *)&hexval[0];
    printf("usi=0x%04hX=%hd\n",usi,usi);

    //比如hexval[2..5]组成一个unsigned int
    ui=*(unsigned int *)&hexval[2];
    printf("ui=0x%08X=%d\n",ui,ui);

    //...

    return 0;
}
//19 02 00 01 00 01 06 01 50 70 7D 00 00 FF 00 00 00 00 00 00 00 00 00 00 00 0A 00 00 00 00 00 00 00 00 00 01 78 CA 00 00 14 86
//usi=0x0219=537
//ui=0x01000100=16777472
//

参考这位大哥的程序